On the subway ride from Columbus Circle to 145th Street, not only was I entertained by a group of "subway tumblers/acrobats", but there was also this gentleman playing harmonica on the D Train. From what I could tell, he was just playing for himself. He wasn't playing out, loud, and he didn't have a hat or box out to collect money. However, he played very well, and was giving some familiar tunes a Cajun swing treatment. "Que Sera Sera" in 4/4 really got my toes a-tappin'.